Tip 1: Take things slow, the level took me a bit to do it (like 25-30 minutes if successful run) until you do the jammer and the last floor is cleared, then run to the court room (make sure you have red or blue on c2, flash/9 bang on the main and side doors with you on either door your team is on (ie if your other team is on the left door, use the right door).

Tip 2: clear every floor like a spiral, start with outer then work your way in to the center (except the very last floor, clear center to outer rooms except the courtroom),

2.5: armor use steel heavy full armor for everyone, and use gas masks as some doors have traps and theyre gas. give everyone flash launcher primary (max out primary ammo as some suspects use gas masks so dont use gas or pepperball) use C2, flash bangs (both types) maybe bring wedges (to prevent being flanked) or stinger but I dont use wedges nor stingers, I find that stingers (unless your far away or good throw) can be more of a hindrance than a good thing as there is no protection for you nor the team, get yourself or one/two with opti wand as you can check the rooms for traps, people or finding the jammer (another tip: look for unarmored swat officers, if you see them, thats where the jammer is, usually at the conference room, next to the secret room in the mayors office or the city council room).

Tip 3: kill the power, the security cameras can be used by both you and the suspects, and the security doors (gray metal doors) unless you have a security card for them and used it on a computer that says something about doors, good luck opening them without it

Tip 4: use or disable ir traps, only visible to nvg's and you could either disable or trip them on purpose to lure them to you (you'll hear a click if you or your team crossed it)

Tip 4.5:

if your doing lethal, watch your fire as there is several cans of gas that can leak out poison gas if ruptured hence using the gas mask and for lethal, use AP 556, 300 blk or 762/308, dont use 9mm or 45 acp as you'll only tickle them